A sample of 50 items is selected to determine whether or not to accept the hypothesis that a population means differs from a value of 20. The sample mean and standard deviation are 18 and 7, respectively. The null hypothesis is not rejected, which of the following is a possible value for the level of significance associated with this test?
8%
10%
1%
5%
Im not sure how to approach this? Help would be appreciated.
1 answer